Re: [PATCH 0/10] psi: pressure stall information for CPU, memory, and IO v2

From: Johannes Weiner
Date: Thu Jul 19 2018 - 08:15:53 EST


On Thu, Jul 19, 2018 at 01:29:39PM +0200, peter enderborg wrote:
> On 07/19/2018 12:21 AM, Johannes Weiner wrote:
> >
> > Yes, we currently use a userspace application that monitors pressure
> > and OOM kills (there is usually plenty of headroom left for a small
> > application to run by the time quality of service for most workloads
> > has already tanked to unacceptable levels). We want to eventually add
> > this back into the kernel with the appropriate configuration options
> > (pressure threshold value and sustained duration etc.)
> Is that the same application as googles lmkd for android? Any source
> that you might share?

Sure! This is the oomd we've been developing and using at Facebook:

https://github.com/facebookincubator/oomd